@article{15084,
  author = {Miroslav Kuchta and Kent-Andre Mardal and Mikael Mortensen},
  title = {Preconditioning trace coupled 3D-1D              systems using fractional Laplacian},
  year = {2019},
  journal = {Numerical Methods for Partial Differential Equations},
  volume = {35},
  pages = {375-393},
  month = {Apr-09-2019},
  publisher = {Wiley},
  address = {Numerical Methods for Partial Differential Equations},
  url = {http://doi.wiley.com/10.1002/num.22304http://onlinelibrary.wiley.com/wol1/doi/10.1002/num.22304/fullpdfhttps://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002\%2Fnum.22304},
  doi = {10.1002/num.22304},
}